@font-face {
    font-family: ptserif;
    src: url('../assets/font/PTSerif-Regular.ttf');
}
@font-face {
    font-family: ptserif;
    font-style: italic;
    src: url('../assets/font/PTSerif-Italic.ttf');
}
@font-face {
    font-family: ptserif;
    font-weight: bold;
    src: url('../assets/font/PTSerif-Bold.ttf');
}
@font-face {
    font-family: ptserif;
    font-style: italic;
    font-weight: bold;
    src: url('../assets/font/PTSerif-BoldItalic.ttf');
}